Del. Code Ann. tit. 29, § 9502
The agency acquiring real property for such use shall, as soon as practicable after the date of payment of the purchase price or the date of deposit into court of funds to satisfy the award of compensation in a condemnation proceeding to acquire real property, whichever is the earlier, reimburse the owner, to the extent the agency deems fair and reasonable, for expenses necessarily incurred for:
29 Del. C. 1953, § 9202; 58 Del. Laws, c. 413, § 3; 70 Del. Laws, c. 186, § 1